Powerball billionaireEdwin Castro is building a “sophisticated team of experts” and sparing no change after being thrust into the limelight, RadarOnline.com has learned. Sources close to the jackpot winner said he has recruited a new attorney, former federal prosecutor, and veteran trial lawyer Michael G. Freedman of The Freedman Firm in LA, according to a report. Castro has also locked in PR guru Terry Fahn to help him with communications. Fahn has worked with A-list celebrities and sports stars, including Alex Rodriguez. The 31-year-old has been adjusting to his newfound wealth after opting …